Honeywell SmartVFD HVAC2 Applications Manual page 158

Prohibited Frequencies (Control
panel: Menu PAR -> P10)
Prohibit frequency range 1: Low
limit
Prohibit frequency range 1: High
limit
Prohibit frequency range 2: Low
limit
Prohibit frequency range 2: High
limit
Two skip frequency regions are available if there
is a need to avoid certain frequencies because of
e.g. mechanical resonance. In this case the actual
frequency reference sent to the motor control will
be kept out of these ranges according to the
example below, where one range is in use.
Actual Reference
High Lim
Low Lim
Fig. 58. Frequency Range
158
Requested Reference
Low Lim High Lim
31-00108—07